We can supply Citric Acid and Oxalic Acid, and offer products' specification and price as follows: CITRIC ACID Item: BP93 Characteristic: Colorless Crystals Solubility,Clarity&color of solution, Identification, Barium purity: 99.5-101.1%, Packing 25kgs/polyetheIn bag OXALIC ACID CONTENT: 99.6-99.4% MIN. OXALIC ACID RDICAL: 0.08-0.01% MAX. ASH: 0.08-0.01% MAX. HEAVY METAL: 0.001-0.002% MAX. Fe: 0.0015-0.002%MAX. CHLORIDE: 0.003-0.004% MAX. Above products? package are 25kg/bag